<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style type="text/css">
			#wrapper{
				width:200px;
				border:1px solid gray;
			}
			#first,#second{
				width:80px;
				height:40px;
				border:1px solid red;
			}
			#first{float:left;}
			#second{float:right;}
		</style>
	</head>
	<body>
		<div id="wrapper">
			<div id="first"></div>
			<div id="second"></div>
		</div>
	</body>
</html>
